If you’re looking for a challenge in a technical, dynamic, and collaborative environment, this position is for you! We’re seeking a professional to support internal and external customers, ensuring excellence in optical processes—from pre-sales through post-sales. **Key Responsibilities:** * Provide technical customer support to internal and external customers, especially in post-sales, delivering accurate and agile solutions; * Perform detailed analyses of optical calculations; * Verify and analyze measurements, including lens thickness and optical tolerances; * Conduct precise lensometry; * Enter orders and manage daily administrative routines, providing efficient support to the team; * Contribute to the continuous improvement of team processes. **Required Knowledge and Qualifications:** * Completed or ongoing Technical Optics course, or proven practical experience in the optical field; * Prior experience in the optical sector, preferably in a laboratory setting; * Knowledge of optical calculations; * Experience verifying measurements, lens thickness, and optical tolerances; * Hands-on lensometry experience; * Basic knowledge of Microsoft Office suite; * Strong verbal and written communication skills; * Ability to work effectively in teams and interact across different departments; * Proactive and organized profile; * Interest in professional development within a technical and dynamic environment. Location: São Cristóvão, RJ. Work Schedule: 5x2 | Monday to Friday, from 9:30 a.m. to 6:30 p.m. At **Haytek**, we believe in people’s development, collaboration, and the constant pursuit of excellence. If you enjoy challenges and want to grow alongside an expanding team, this opportunity is for you! Minimum Education Level: Technical Course